Premium Officially Licensed NBA PA Athletic Socks - Loved by NBA fans everywhere! Made by Strideline, a Seattle start-up founded in 2009 by high school entrepreneurs dedicated to making the most comfortable sock on earth Keep your feet dry with Strideline's specialized blend of TC cotton, microfiber polyester, and StrideTec compression material Get a perfect fit every time with left/right anatomical construction Soften impact with a Terry cotton foot bed on the most durable sock on the market